From my experience, all who have a Mistking would not dare give them up. Your best deal maybe with Josh's. Do your homework to find the best price/discount and buy new. In the long run, you'll be glad you did; I am. Here's the listing on Amazon:
You bet. Looked around a little this am. If you're a prime member, this maybe the way to go. I haven't found anything under $129 for the basic kit. You might also go a google search for Climist. I hear they're very similar, but haven't had first hand experience with them. Hopefully, someone will chime in with a review for them. Here's the link to them. Little cheaper, but.....
Mist King was the best investment I made for my animals. I run my chameleon and dart frogs off the same pump. had to install an on/off valve on my chams side of the system since my frogs get misted throughout the night.